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The Warthog A4- Evolution of a Classic!

Warthog Sharpener’s most recent countertop addition is the A4, a revamp of the legendary Warthog V-Sharp system used in the Classic II and the original Classic sharpener. However, they’ve taken it a step further in true Warthog style. Warthog Sharpeners has added a 15-degree angle to its new A4 model, offering four settings to cover all the bases for your knife needs (15°, 20°, 25°, and 30°). Like the Classic II, the A4 is equipped with two 325-grit double-sided diamond rods and finishing steels that simultaneously sharpen both sides of the blade. The sharpener weighs about one pound and has a hand-crafted metal frame, sturdy rubber base, and powder-coated finish

Changing Kitchen Trend

A recent phenomenon is knife manufacturers’ broad adoption of the 15-degree edge. The 15-degree edge exhibits less cutting friction, particularly when a thinner blade geometry is accompanied. This follows suit with Japanese chef/sushi knives, which have been utilizing sharp angles on their knives with excellent results. Contemporary Asian knives usually have a double bevel with a 15-degree angle on both sides. Among these knives are the Santoku and Nakiri. In the home kitchen, a 15-degree angle is perfect for modern chef knives. Use the other angles for heavier cleavers, pocket knives and EDC knives. Whether for your inner pro home cook or professional, the Warthog A4 covers all the bases.

Step into the future of knife sharpening with Warthog Sharpeners A4!


  • 4 Adjustable Angles (15°, 20°, 25°, 30°)
  • 325 Grit Natural Diamond Rods
  • Metal Frame Construction
  • Durable Powder-coat Finish
  • 4 colors, Black, Gun Metal Grey, Red, and Aqua Sky
  • Solid Rubber Base or the Elite Model with a wooden base
  • Finishing Steels (Included)
  • 1-Year Warranty
  • Weight = 25 ounces (709 grams)
  • MSRP: $99.99

For over 20 years Warthog Blade Sharpeners has been manufacturing and exporting high quality diamond knife sharpeners. Warthog was established in 1999 with the goal of creating an innovative world-first knife sharpener that delivered better results than any competitor on the market. Treat your blades with the respect and care they deserve. We have conducted extensive research into various types of blade sharpeners and the results may shock you. Microscopic photos of edges show just how much damage traditional sharpeners can do.

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